86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
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/*
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* $Id$
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*
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*
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* L O S A L A M O S
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* Los Alamos National Laboratory
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* Los Alamos, New Mexico 87545
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*
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* Copyright, 1986, The Regents of the University of California.
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*
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*
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* Author Jeffrey O. Hill
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* johill@lanl.gov
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* 505 665 1831
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*/
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#include "iocinf.h"
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void ioCounter::decrementOutstandingIO ()
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{
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bool signalNeeded;
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this->mutex.lock ();
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if ( this->pndrecvcnt > 0u ) {
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this->pndrecvcnt--;
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if ( this->pndrecvcnt == 0u ) {
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signalNeeded = true;
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}
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else {
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signalNeeded = false;
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}
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}
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else {
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signalNeeded = true;
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}
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this->mutex.unlock ();
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if ( signalNeeded ) {
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this->ioDone.signal ();
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}
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}
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void ioCounter::decrementOutstandingIO ( unsigned seqNumber )
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{
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bool signalNeeded;
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this->mutex.lock ();
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if ( this->readSeq == seqNumber ) {
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if ( this->pndrecvcnt > 0u ) {
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this->pndrecvcnt--;
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if ( this->pndrecvcnt == 0u ) {
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signalNeeded = true;
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}
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else {
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signalNeeded = false;
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}
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}
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else {
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signalNeeded = true;
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}
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}
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else {
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signalNeeded = false;
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}
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this->mutex.unlock ();
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if ( signalNeeded ) {
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this->ioDone.signal ();
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}
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}
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void ioCounter::showOutstandingIO ( unsigned level ) const
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{
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printf ( "ioCounter at %p\n", this );
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printf ( "\tthere are %u unsatisfied IO operations blocking ca_pend_io()\n",
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this->pndrecvcnt );
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if ( level > 0u ) {
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printf ( "\tthe current read sequence number is %u\n",
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this->readSeq );
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}
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if ( level > 1u ) {
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printf ( "IO done event:\n");
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this->ioDone.show ( level - 2u );
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}
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}
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